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Drainage Engineer · Invoice template

Free drainage engineer invoice template

A professional invoice template for drainage engineers. Itemise the CCTV survey, clearance method, and drain responsibility — download a branded PDF in under a minute.

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A CCTV drain survey is a real, billable diagnostic step, not a courtesy thrown in before the "real work" starts. It's what tells you whether a blockage needs simple rodding, high-pressure jetting, or points to a structural problem needing excavation. Pricing it separately, and crediting it against further work if the customer proceeds, reflects the genuine diagnostic value of actually seeing what's wrong before quoting a fix.

Rodding, jetting, and excavation are three different tiers of job, not interchangeable words for "unblocking a drain." Rodding suits a simple, accessible blockage. Jetting clears grease and scale further down the line. Excavation is needed when the pipe itself is damaged or collapsed. Naming which method was used, and why, on the invoice explains the price difference between what looks like "the same job" on paper.

Drain responsibility in the UK isn't always the property owner's. A shared lateral drain serving multiple properties, or a public sewer beyond the boundary, may be the water company's responsibility instead of the customer's. Note where the blockage was found and who is actually liable. This is a genuine, common source of dispute, and getting it right protects both you and the customer from paying for a fix that wasn't theirs to pay for.

Recurring blockages, especially from tree root ingress, are worth flagging as an ongoing issue, not treating each callout as unrelated. A customer who's called you out three times for the same drain deserves an honest note that a repair, not merely repeated clearing, may be the better long-term fix, even if that's a bigger job than the one they called about today.

What this template includes

  • ✓CCTV drain survey priced as its own diagnostic step
  • ✓Jetting, rodding, or excavation tiered by method
  • ✓Shared/private drain responsibility noted
  • ✓Root ingress or recurring issue flagged
  • ✓PDF download or shareable tracked link

Full guide

How to Start a Drainage Business as a Sole Trader

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Frequently asked questions

It's a genuine diagnostic step that determines whether a simple rod, jetting, or excavation is needed. Pricing it separately reflects real diagnostic value, and it's often credited against further work.

Not always — a shared lateral drain or public sewer beyond the boundary may be the water company's responsibility. This should be identified and stated on the invoice.

Often tree root ingress or an underlying pipe issue. If a drain has been cleared repeatedly, a proper repair is usually worth flagging as the better long-term fix.

Live preview

Your Business Name
+44 20 1234 5678
12 Example Street London EC1A 1AA
Invoice
Q-1042
Jul 8, 2026
Valid until Aug 7, 2026
Bill to
Fenwick Property Management
[email protected]
Job
CCTV drain survey + jetting, recurring blockage
Description
Qty
Unit
Total
Survey
CCTV drain survey and diagnosis
1
£95.00
£95.00
Clearance
High-pressure jetting
1
£165.00
£165.00
Survey£95.00
Clearance£165.00
Subtotal£260.00
Tax (20%)£52.00
Total£312.00
Notes

CCTV survey identified root ingress at 4m — likely recurring cause. High-pressure jetting cleared blockage. Drain confirmed private, customer responsibility. Recommend root-cutting/repair if blockage recurs.

Payment instructions

Bank: Example Bank Sort code: 00-00-00 Account: 12345678

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